An excess of grease can cause a ball or roller bearing to _________.

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Multiple Choice

An excess of grease can cause a ball or roller bearing to _________.

Explanation:
Grease provides the lubricating film and helps carry heat away from the bearing. When too much grease is used, the excess has to be moved around as the bearing turns, which creates viscous heating. At the same time, the extra grease can trap heat and block efficient heat dissipation, raising the bearing’s temperature. So the immediate effect is overheating. Seize, wear, and corrosion are more linked to inadequate lubrication, contamination, or poor heat management, rather than to too much grease.

Grease provides the lubricating film and helps carry heat away from the bearing. When too much grease is used, the excess has to be moved around as the bearing turns, which creates viscous heating. At the same time, the extra grease can trap heat and block efficient heat dissipation, raising the bearing’s temperature. So the immediate effect is overheating. Seize, wear, and corrosion are more linked to inadequate lubrication, contamination, or poor heat management, rather than to too much grease.

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